Home / 30,675.18-46,013.80-8,486.70

Finding the Fourth Proportional to 30,675.18, 46,013.80 and 8,486.70

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Solution

The fourth proportional to 30,675.18, 46,013.80 and 8,486.70 is: 12,730.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,675.18 : 46,013.80 = 8,486.70 : x
  2. Step 2: Convert to fraction form
    30,675.18/46,013.80 = 8,486.70/x
  3. Step 3: Cross multiply
    30,675.18x = 46,013.80 × 8,486.70
  4. Step 4: Simplify right side
    30,675.18x = 390,505,295.24
  5. Step 5: Solve for x
    x = 390,505,295.24/30,675.18
  6. Step 6: Final answer
    x = 12,730.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.